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  • White Frost Tricoat 2021 GMC Sierra 1500 DenaliWhite Frost Tricoat 2021 GMC Sierra 1500 DenaliWhite Frost Tricoat 2021 GMC Sierra 1500 DenaliWhite Frost Tricoat 2021 GMC Sierra 1500 DenaliWhite Frost Tricoat 2021 GMC Sierra 1500 DenaliWhite Frost Tricoat 2021 GMC Sierra 1500 Denali

    $45,317

    $571
    41,046 mi.
    Est. $842/mo

    O'Meara GMC

    3.0
    Check Availability
    Thornton, CO (29 mi)

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  • White 2021 GMC Sierra 1500 ElevationWhite 2021 GMC Sierra 1500 ElevationWhite 2021 GMC Sierra 1500 ElevationWhite 2021 GMC Sierra 1500 ElevationWhite 2021 GMC Sierra 1500 ElevationWhite 2021 GMC Sierra 1500 Elevation

    $36,793

    $299
    40,131 mi.
    Est. $683/mo

    Weld County Garage GMC Hummer

    4.5
    Check Availability
    Greeley, CO (20 mi)

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  • Dark Sky Metallic 2021 GMC Sierra 1500 SLTDark Sky Metallic 2021 GMC Sierra 1500 SLTDark Sky Metallic 2021 GMC Sierra 1500 SLTDark Sky Metallic 2021 GMC Sierra 1500 SLTDark Sky Metallic 2021 GMC Sierra 1500 SLTDark Sky Metallic 2021 GMC Sierra 1500 SLT

    $39,990

    50,056 mi.
    Est. $743/mo

    McDonald Toyota Greeley

    4.4
    Check Availability
    Greeley, CO (20 mi)
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  • Satin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 ElevationSatin Steel Metallic 2021 GMC Sierra 1500 Elevation

    $28,700

    $700
    94,121 mi.
    Est. $533/mo

    Stevinson Hyundai of Frederick

    4.6
    Check Availability
    Longmont, CO (14 mi)
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  • White Frost Tricoat 2021 GMC Sierra 1500 DenaliWhite Frost Tricoat 2021 GMC Sierra 1500 DenaliWhite Frost Tricoat 2021 GMC Sierra 1500 DenaliWhite Frost Tricoat 2021 GMC Sierra 1500 DenaliWhite Frost Tricoat 2021 GMC Sierra 1500 DenaliWhite Frost Tricoat 2021 GMC Sierra 1500 Denali

    $37,969

    84,255 mi.
    Est. $705/mo

    ClearShift - Loveland

    4.7
    Check Availability
    Loveland, CO (8 mi)
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  • Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4

    $34,890

    122,890 mi.
    Est. $648/mo

    Berkenkotter Motors Brighton

    4.1
    Check Availability
    Brighton, CO (26 mi)
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  • Quicksilver Metallic 2021 GMC Sierra 1500 SLTQuicksilver Metallic 2021 GMC Sierra 1500 SLTQuicksilver Metallic 2021 GMC Sierra 1500 SLTQuicksilver Metallic 2021 GMC Sierra 1500 SLTQuicksilver Metallic 2021 GMC Sierra 1500 SLTQuicksilver Metallic 2021 GMC Sierra 1500 SLT

    $34,999

    83,968 mi.
    Est. $650/mo

    AutoNation USA Denver 104

    3.8
    Check Availability
    Northglenn, CO (30 mi)
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  • Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4

    $35,790

    $210
    108,501 mi.
    Est. $665/mo

    Weld County Garage GMC Hummer

    4.5
    Check Availability
    Greeley, CO (20 mi)

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  • Hunter Metallic 2021 GMC Sierra 1500 DenaliHunter Metallic 2021 GMC Sierra 1500 DenaliHunter Metallic 2021 GMC Sierra 1500 DenaliHunter Metallic 2021 GMC Sierra 1500 DenaliHunter Metallic 2021 GMC Sierra 1500 DenaliHunter Metallic 2021 GMC Sierra 1500 Denali

    $43,481

    $411
    61,843 mi.
    Est. $808/mo

    Interstate Ford

    4.7
    Check Availability
    Dacono, CO (17 mi)
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  • Dark Sky Metallic 2021 GMC Sierra 1500 AT4Dark Sky Metallic 2021 GMC Sierra 1500 AT4Dark Sky Metallic 2021 GMC Sierra 1500 AT4Dark Sky Metallic 2021 GMC Sierra 1500 AT4Dark Sky Metallic 2021 GMC Sierra 1500 AT4Dark Sky Metallic 2021 GMC Sierra 1500 AT4

    $38,997

    67,584 mi.
    Est. $724/mo

    EchoPark Automotive Thornton

    4.8
    Check Availability
    Thornton, CO (30 mi)
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  • Gray 2021 GMC Sierra 1500 ElevationGray 2021 GMC Sierra 1500 ElevationGray 2021 GMC Sierra 1500 ElevationGray 2021 GMC Sierra 1500 ElevationGray 2021 GMC Sierra 1500 ElevationGray 2021 GMC Sierra 1500 Elevation

    $34,998

    88,305 mi.
    Est. $650/mo

    CarMax Loveland

    4.4
    Check Availability
    Loveland, CO (11 mi)
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  • Pacific Blue Metallic 2021 GMC Sierra 1500 ElevationPacific Blue Metallic 2021 GMC Sierra 1500 ElevationPacific Blue Metallic 2021 GMC Sierra 1500 Elevation

    $36,933

    81,445 mi.
    Est. $686/mo

    Loveland Buick GMC

    Check Availability
    Loveland, CO (12 mi)
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  • 2021 GMC Sierra 1500 AT42021 GMC Sierra 1500 AT42021 GMC Sierra 1500 AT42021 GMC Sierra 1500 AT42021 GMC Sierra 1500 AT42021 GMC Sierra 1500 AT4

    $44,235

    $715
    47,146 mi.
    Est. $822/mo

    Sterling Auto Sales - Frederick

    Check Availability
    Longmont, CO (14 mi)
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  • Blue 2021 GMC Sierra 1500 ElevationBlue 2021 GMC Sierra 1500 ElevationBlue 2021 GMC Sierra 1500 ElevationBlue 2021 GMC Sierra 1500 ElevationBlue 2021 GMC Sierra 1500 ElevationBlue 2021 GMC Sierra 1500 Elevation

    $31,590

    104,607 mi.
    Est. $587/mo

    Weld County Garage GMC Hummer

    4.5
    Check Availability
    Greeley, CO (20 mi)

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  • 2021 GMC Sierra 1500 Denali2021 GMC Sierra 1500 Denali2021 GMC Sierra 1500 Denali2021 GMC Sierra 1500 Denali2021 GMC Sierra 1500 Denali2021 GMC Sierra 1500 Denali

    $39,670

    $113
    70,688 mi.
    Est. $737/mo

    Sterling Auto Sales - Frederick

    Check Availability
    Longmont, CO (14 mi)
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  • Ebony Twilight Metallic 2021 GMC Sierra 1500 DenaliEbony Twilight Metallic 2021 GMC Sierra 1500 DenaliEbony Twilight Metallic 2021 GMC Sierra 1500 DenaliEbony Twilight Metallic 2021 GMC Sierra 1500 DenaliEbony Twilight Metallic 2021 GMC Sierra 1500 DenaliEbony Twilight Metallic 2021 GMC Sierra 1500 Denali

    $46,004

    46,356 mi.
    Est. $855/mo

    Prestige Chrysler Dodge Jeep RAM

    4.2
    Check Availability
    Longmont, CO (10 mi)
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  • Gray 2021 GMC Sierra 1500 DenaliGray 2021 GMC Sierra 1500 DenaliGray 2021 GMC Sierra 1500 DenaliGray 2021 GMC Sierra 1500 DenaliGray 2021 GMC Sierra 1500 DenaliGray 2021 GMC Sierra 1500 Denali

    Not Priced

    75,819 mi.
    Est. $0/mo

    Weld County Garage GMC Hummer

    4.5
    Check Availability
    Greeley, CO (20 mi)
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  • White 2021 GMC Sierra 1500 SLTWhite 2021 GMC Sierra 1500 SLTWhite 2021 GMC Sierra 1500 SLTWhite 2021 GMC Sierra 1500 SLTWhite 2021 GMC Sierra 1500 SLTWhite 2021 GMC Sierra 1500 SLT

    Not Priced

    60,034 mi.

    Yoder Chevrolet

    4.3
    Check Availability
    Fort Lupton, CO (22 mi)
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  • Blue 2021 GMC Sierra 1500 SLEBlue 2021 GMC Sierra 1500 SLEBlue 2021 GMC Sierra 1500 SLEBlue 2021 GMC Sierra 1500 SLEBlue 2021 GMC Sierra 1500 SLEBlue 2021 GMC Sierra 1500 SLE

    $37,998

    22,781 mi.
    Est. $706/mo

    CarMax Independence

    4.8
    Check Availability
    Free delivery to Loveland, CO (11 mi)
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  • Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4

    $36,995

    $1.5K
    67,914 mi.
    Est. $687/mo

    Scottsdale Mitsubishi

    3.9
    Check Availability
    $1,203 delivery from Scottsdale, AZ (602 mi)
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  • Red 2021 GMC Sierra 1500 AT4Red 2021 GMC Sierra 1500 AT4Red 2021 GMC Sierra 1500 AT4Red 2021 GMC Sierra 1500 AT4Red 2021 GMC Sierra 1500 AT4Red 2021 GMC Sierra 1500 AT4

    $39,988

    73,158 mi.
    Est. $743/mo

    The Sharpest Rides

    4.5
    Check Availability
    Englewood, CO (44 mi)
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  • Ebony Twilight Metallic 2021 GMC Sierra 1500 AT4Ebony Twilight Metallic 2021 GMC Sierra 1500 AT4Ebony Twilight Metallic 2021 GMC Sierra 1500 AT4Ebony Twilight Metallic 2021 GMC Sierra 1500 AT4Ebony Twilight Metallic 2021 GMC Sierra 1500 AT4Ebony Twilight Metallic 2021 GMC Sierra 1500 AT4

    $33,243

    153,081 mi.
    Est. $617/mo

    John Elway Chevrolet - Broadway

    4.2
    Check Availability
    Englewood, CO (48 mi)
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  • Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4

    $38,589

    $100
    98,506 mi.
    Est. $717/mo

    Alpine Chevrolet

    4.5
    Check Availability
    Aurora, CO (42 mi)
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  • Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4Summit White 2021 GMC Sierra 1500 AT4

    $37,689

    83,639 mi.
    Est. $700/mo

    Alpine Buick GMC

    4.4
    Check Availability
    Littleton, CO (46 mi)
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  • Hunter Metallic 2021 GMC Sierra 1500 DenaliHunter Metallic 2021 GMC Sierra 1500 DenaliHunter Metallic 2021 GMC Sierra 1500 DenaliHunter Metallic 2021 GMC Sierra 1500 DenaliHunter Metallic 2021 GMC Sierra 1500 DenaliHunter Metallic 2021 GMC Sierra 1500 Denali

    $45,689

    46,291 mi.
    Est. $849/mo

    Alpine Buick GMC

    4.4
    Check Availability
    Littleton, CO (46 mi)
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  • WHITE 2021 GMC Sierra 1500 ElevationWHITE 2021 GMC Sierra 1500 ElevationWHITE 2021 GMC Sierra 1500 ElevationWHITE 2021 GMC Sierra 1500 ElevationWHITE 2021 GMC Sierra 1500 ElevationWHITE 2021 GMC Sierra 1500 Elevation

    $34,397

    73,511 mi.
    Est. $639/mo

    Super Auto Company, Inc.

    5.0
    Check Availability
    Denver, CO (39 mi)
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  • Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4

    $39,953

    $2K
    57,262 mi.
    Est. $742/mo

    Christopher's Dodge Ram

    3.3
    Check Availability
    Golden, CO (40 mi)
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  • RED 2021 GMC Sierra 1500 ElevationRED 2021 GMC Sierra 1500 ElevationRED 2021 GMC Sierra 1500 ElevationRED 2021 GMC Sierra 1500 ElevationRED 2021 GMC Sierra 1500 ElevationRED 2021 GMC Sierra 1500 Elevation

    $37,697

    66,328 mi.
    Est. $700/mo

    Super Auto Company, Inc.

    5.0
    Check Availability
    Denver, CO (39 mi)
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  • $43,798

    45,243 mi.
    Est. $814/mo

    Foundation Chevrolet

    4.5
    Check Availability
    Wheat Ridge, CO (36 mi)
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  • $37,698

    105,849 mi.
    Est. $700/mo

    Foundation Chevrolet

    4.5
    Check Availability
    Wheat Ridge, CO (36 mi)
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  • White Frost Tri-Coat 2021 GMC Sierra 1500 SLT

    Not Priced

    44,559 mi.

    Auto Mart USA

    Check Availability
    Aurora, CO (44 mi)
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  • Ebony Twilight Metallic 2021 GMC Sierra 1500 Denali

    $31,896

    132,669 mi.
    Est. $592/mo

    Springs Automotive Group

    4.7
    Check Availability
    Englewood, CO (46 mi)
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GMC Sierra 1500 prices by year

Model year Average price Deals
2026 GMC Sierra 1500 $62,436 3 Good deals
2025 GMC Sierra 1500 $51,998 7 Great deals
2024 GMC Sierra 1500 $51,507 5 Great deals
2023 GMC Sierra 1500 $47,802 8 Great deals
2022 GMC Sierra 1500 $42,533 7 Great deals

About the 2021 GMC Sierra 1500

Basics

Base shown (base trim).

Seating
3
Door count
2
Drivetrain
Rear-wheel drive
Combined MPG
16
Transmission
6-Speed A/T
Engine
285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)
Side view of the 2021 GMC Sierra 1500
FAQs

How much does the 2021 GMC Sierra 1500 cost?

The 2021 GMC Sierra 1500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 1500 is $36,329, with pricing starting at $12,999.

What is the MPG of the 2021 GMC Sierra 1500?

The 2021 GMC Sierra 1500 offers up to 14 MPG in city driving and 19 MPG on the highway for a combined rating of 16 MPG.

These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle trim, driving conditions, driving habits, vehicle maintenance, and other factors.

What are some similar vehicles and competitors of the 2021 GMC Sierra 1500?

The 2021 GMC Sierra 1500 compares to and/or competes against the following vehicles:


Is the 2021 GMC Sierra 1500 reliable?

The 2021 GMC Sierra 1500 has an average reliability rating of 3.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Sierra 1500 owners.

Is the 2021 GMC Sierra 1500 a good truck?

Below are the Cars.com consumer ratings for the 2021 GMC Sierra 1500.

(56 reviews)
Rating breakdown (out of 5):
Comfort
4.2
Interior
4.2
Performance
3.8
Value
3.6
Exterior
4.3
Reliability
3.5
Ratings (56 reviews)

60% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.2
Interior
4.2
Performance
3.8
Value
3.6
Exterior
4.3
Reliability
3.5
Trims

AT4 (2 styles)

Style
4WD Crew Cab 157" AT4 4WD Crew Cab 147" AT4
Inventory price
Starting at $55,900 Starting at $54,700
Combined MPG
16 17
Engine
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)

Base (7 styles)

Style
4WD Reg Cab 140" 2WD Reg Cab 140" 2WD Crew Cab 147" 4WD Crew Cab 147" 4WD Crew Cab 157" 4WD Double Cab 147" 2WD Double Cab 147"
Inventory price
Starting at $34,700 Starting at $30,100 Starting at $36,400 Starting at $39,700 Starting at $40,000 Starting at $37,300 Starting at $34,000
Combined MPG
16 16 21 19 19 19 21
Engine
285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel)

Denali (3 styles)

Style
2WD Crew Cab 147" Denali 4WD Crew Cab 147" Denali 4WD Crew Cab 157" Denali
Inventory price
Starting at $55,800 Starting at $59,300 Starting at $59,600
Combined MPG
17 18 18
Engine
355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)

Elevation (7 styles)

Style
4WD Double Cab 147" Elevation w/3VL 4WD Crew Cab 147" Elevation w/3VL 4WD Crew Cab 157" Elevation 2WD Double Cab 147" Elevation 4WD Double Cab 147" Elevation w/3SB 4WD Crew Cab 147" Elevation w/3SB 2WD Crew Cab 147" Elevation
Inventory price
Starting at $44,600 Starting at $47,200 Starting at $49,300 Starting at $43,100 Starting at $46,400 Starting at $49,000 Starting at $45,700
Combined MPG
19 19 19 21 19 19 21
Engine
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel)

SLE (5 styles)

Style
4WD Crew Cab 147" SLE 4WD Crew Cab 157" SLE 2WD Double Cab 147" SLE 2WD Crew Cab 147" SLE 4WD Double Cab 147" SLE
Inventory price
Starting at $47,100 Starting at $47,400 Starting at $41,400 Starting at $43,800 Starting at $44,700
Combined MPG
19 19 21 21 19
Engine
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel)

SLT (3 styles)

Style
4WD Crew Cab 147" SLT 2WD Crew Cab 147" SLT 4WD Crew Cab 157" SLT
Inventory price
Starting at $50,800 Starting at $47,500 Starting at $51,100
Combined MPG
18 17 18
Engine
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)
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